Preheat oven to 350 degrees F. Grease two 9x13-inch baking sheets.In a large bowl, beat together butter, maple syrup, sugar, eggs, and vanilla extract until light and fluffy. Stir in rolled oats. In another bowl, stir together flour, baking soda, and salt. Add flour mixture to butter mixture and mix well. Drop by rounded teaspoonfuls about 2 inches apart onto prepared baking sheets and bake for approximately 12 to 15 minutes or until light brown and bottoms are golden. Remove from oven and cool on wire racks.